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S12700 V200R013C00 Command Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.
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The guard-interval-mode command configures the guard interval (GI) mode.

The undo guard-interval-mode command restores the default GI mode.

By default, the GI mode for 802.11n/ac is short, and the GI mode for 802.11ax is 0.8 us.


guard-interval-mode { short | normal }

undo guard-interval-mode

guard-interval-mode dot11ax { dot8 | 1dot6 | 3dot2 }

undo guard-interval-mode dot11ax






Sets the GI mode for 802.11n/ac to short.



Sets the GI mode for 802.11n/ac to normal.


dot11ax { dot8 | 1dot6 | 3dot2 }

Specifies the GI mode for 802.11ax.



2G radio profile view, 5G radio profile view

Default Level

2: Configuration level

Usage Guidelines

During data transmission, the receive and transmit ends do not receive and send data at all times. When data is transmitted and received or transmitted for multiple times, multi-path interference exists during radio transmission in the space. Setting the GI can reduce interference impact on signals.

A smaller GI indicates higher transmission efficiency. A larger GI indicates a higher anti-interference capability. In indoor environments with little interference, a small GI is recommended. In outdoor environments with high interference, a large GI is recommended.
  • The GI for 802.11a/b/g is fixed at 800 ns.

  • The GI for 802.11n and 802.11ac is 400 ns (short) or 800 ns (normal).

  • The GI for 802.11ax can be 0.8 us (800 ns), 1.6 us, or 3.2 us.


# Set the GI mode to short.

<HUAWEI> system-view
[HUAWEI] wlan 
[HUAWEI-wlan-view] radio-2g-profile name default
[HUAWEI-wlan-radio-2g-prof-default] guard-interval-mode short
Updated: 2019-04-09

Document ID: EDOC1100065659

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